I believe if your hard drive is larger than 500GB you have to use Acronis Disk Director 11 Advanced to check: right click your disk/change cluster size/current cluster size:
I use Acronis Disk Director 11 Advanced to check my hard drive cluster size and it was 64KB so I change it to 32KB and I did not lose any data and it is very quick.

I believe if your hard drive is larger than 500GB you have to use Acronis Disk Director 11 Advanced to check: right click your disk/change cluster size/current cluster size:
I use Acronis Disk Director 11 Advanced to check my hard drive cluster size and it was 64KB so I change it to 32KB and I did not lose any data and it is very quick.

no, you will not lose any data. I remove the HB stuff kept it on the computer and I left all my games and movies and they all work perfect after I change the cluster size, your partition will be the same just with 32KB cluster size

You can examine the properties of a file on the disk (preferably a very small one made with Notepad) and it's "size on disk" can tell you the cluster size. For instance, this 1 byte file consumes 4KB (4096 bytes) on disk because 4KB (4096 bytes) is the cluster size. If it consumes 32KB (32,768 bytes) on the disk the cluster size is 32KB. If it consumes 64KB (65536 bytes) the cluster size is 64KB.

You can examine the properties of a file on the disk (preferably a very small one made with Notepad) and it's "size on disk" can tell you the cluster size. For instance, this 1 byte file consumes 4KB (4096 bytes) on disk because 4KB (4096 bytes) is the cluster size. If it consumes 32KB (32,768 bytes) on the disk the cluster size is 32KB. If it consumes 64KB (65536 bytes) the cluster size is 64KB.

So size would be the file itself and size on disc would be the cluster size? Interesting....and this check would work on a entire external HDD as well as individual files?

You can examine the properties of a file on the disk (preferably a very small one made with Notepad) and it's "size on disk" can tell you the cluster size. For instance, this 1 byte file consumes 4KB (4096 bytes) on disk because 4KB (4096 bytes) is the cluster size. If it consumes 32KB (32,768 bytes) on the disk the cluster size is 32KB. If it consumes 64KB (65536 bytes) the cluster size is 64KB.

So the cluster size is 32 kb but the none of the games are loading. I guess my HDD isn't compatible with DM.